Non-jamming removable slider



w @u mm n d mm. M x HJW M L m w May 21, 1957 H. MolN NON-JAMMING REMOVABLE SLIDER Filed May 26, 1953 nited States Patent NON JAMh/IIN G REMOVABLE SLIDER Louis H. Morin, Bronx, N. Y.

Application May 26, 1953, Serial No. 357,435

11 Claims. (Cl. 24-205.15)

This invention relates to sliders for separable fastener stringers to couple and uncouple the stringers. More particularly, the invention deals with a non-jamming slider wherein the walls defining the channeled slider body are relatively movable against the action of tensional means to avoid jamming of the slider on the stringers.

Still more particularly, the invention deals with a slider structure of this type and kind wherein yieldable or tensional means employed can be moved into inoperative position to free one wall of the slider to open the channel of the slider body suiciently to permit attachment and detachment of the slider with a pair of separable fastener stringers.

The novel features of the invention will be best understood from the following description, when taken together with the accompanying drawing, in which certain embodiments of the invention are disclosed and, in which, the separate parts are designated by suitable reference characters in each of the views and, in which:

Fig. l is a plan view of a slider made according to my invention showing the slider in normal locked position;

Fig. 2 is a central longitudinal section partly in elevation through the slider as shown in Fig. 1 and diagrammatically illustrating the position of two scoops within the channel of the slider body;

Fig. 3 is a view similar to Fig. 2 omitting the scoops and part of the construction and showing the walls of the slider body in spread position facilitating `attachment and detachment with a pair of stringers; and

Fig. 4 is a partial section on the line 4 4 of Fig. 1 of the drawing.

In the drawing, I have shown at one wall of a slider body, the wall having at one end portion inwardly extending flanges 11 partially defining the single channel end of the slider body. At 12 is shown an integral web portion on the wall 10, the web dividing the other end portion of the slider body into two channels opening through opposed sides of the slider body as with other devices of this type and kind.

The web 12 has a key recess 13 opening through the outer surface 14 of the web and also through the end of the web, as noted at 15 in Fig. 2 of the drawing, The web 12 as well as the wall 10 has a vertical aperture 16 in which is arranged swivel shaft 17 of a spring or coupling element 18. The element 18 has a curved bearing portion 19 immediately joining the swivel shaft 17 and integral therewith, and the end of the curved portion 19 terminates in a reversely curved spring and key end 2i). The element 18 is held against displacement from the slider body by a rivet end 21 engaging a washer 22, as clearly noted in Fig. 2 of the drawing.

At 23 l have shown a movable wall of the slider body. This wall has inwardly extending anges 24 similar to the flanges 11, and the inner surface of the wall is adapted to seat upon the surface of the web 12, as clearly shown in Fig. 2. The wall 23 has an elongated aperture 25 in which the swivel shaft portion 17 of the element 1S oper- Patented May 21, 1957 ates. The wall 23 also has an inwardly projecting key member 26 which operates in the key recess 13 of the web in maintaining alinement of the wall 23 with respect to the wall 10.

The wall 23 also has at the other end portion thereof an elongated curved as well as transversely curved key recess 27, note in this connection Fig. 4 of the drawing, in which the curved spring end 2) of the element 18 operates. The spring end 20 serves to maintain the wall 23 in seated position upon the surface 14 and also aids in the alinement of the wall 23 with respect to the wall 10 in the normal use of the slider.

In Fig. 2 of the drawing, I have diagrammatically shown at 28 in section two scoops within the channel of the slider body simply to indicate that sufficient clearance will be provided as at 29 for slight inward movement of the wall 23 in the operation of swinging the element 1S from the position shown in Fig. 2 to that shown in Fig. 3 for purposes as later described.

The movable wall 23 also has at one side of the recess 27 an elongated aperture 341 for receiving the lock element 31 of a pull 32. The pull 32 is in the form of an elongated iingerpiece having a pivot pin end portion 33 which operates in the curved bearing 19 of the element 18, as clearly noted in Fig. 2, the pull having an elongated aperture 34 to facilitate movement of the pull into the position shown in Fig. 2 as well as into the position shown in Fig. 3 of the drawing. The curved spring end 20 and part of the curved bearing portion 19 is disposed,

for the major part, in the aperture 34 of the pull, particularly when the parts are in the position shown in Fig. 2 of the drawing. It Will be apparent that by raising the pull sufficiently to disengage the lock element 31 from the aperture 3% of the wall 23, the pull can be swung to either side of the slider body to rotate the element 18 on the swivel shaft 17 to bring the parts into the position shown in Fig. 3 of the drawing, in which position the wall 23 is free to move in widespread relationship to the wall 10, permitting coupling and uncoupling of the slider with respect toa pair of separable fastener stringers.

When coupling engagement has been accomplished, then the pull 32 can again be swung to return the parts to the position shown in Fig. 2, which would be the normal position of the slider when in locked position on the stringers.

To operate the slider, the pull is raised to disengage the lock element 31 from the scoops 28, thus facilitating free movement of the slider along the scoops of a pair of stringers, the curved bearing 19 providing a free pivotal and swinging movement for the pivot end 33 of the pull.

It will be understood that in normal operation of the slider body in the event that a jamming condition develops, the wall 23 is free to yield against the action of the spring end 2li, thus a jamming condition can be corrected in a simple manner. However, if this jamming condition should be complicated to the extent of preventing slider motion, then the wall 23 can be freed for movement into a position similar to that shown in Fig. 3 to correct the acute jamming which had developed, after which the slider can be reassembled with the stringers and normal operation performed.

It will be understood that in the lateral swinging movement of the pull, the spring end 20 of the element 13 rides upwardly on the laterally curved walls of the recess 27, as will appear from a consideration of Fig. 4 of the drawing, and in this operation slight inward movement of the wall 23 will take place which is compensated for by the clearance provided as at 29. It will also be understood that the wall 23 is at all times maintained in alined relationship to the wall 10 by operation of the key 26 in the recess 13.

For purposes of description, the element 18 can be considered as a swivel element providing the swivel mounting of the ngerpiece or pull on the slider body, the pull comprising the means for actuating the element in the control of the movable Wall of the slider body in the movement of said wall from its normal operative position as shown in Fig'. 2 to its open position as shown in Fig. 3, and vice versa.

It will be understood that the curved spring end portion ofthe element, while assisting to some degree in alinement of the walls one with respect to the other, further establishes the keying relationship between the element and the-Wall 23. In other words, the element 13 is held againstl rotation in the slider body by engagement in the key recess 27. This will prevent accidental rotation of the element 1S in normal operation of the slider body in both directions on the stringers in coupling Vand uncoupling the same. The separable fastener stringers have not been shown, as these are Well known in the art and-form no part of the present conception.

It will be understood that the spring properties of the element 18 are such as to normally maintain the wall 23 in the position, as shownV in Fig. 2, with the inner surface of the wall 23 parallel to the corresponding surface of the wall 1G. In this position, the wall 23 seats on the surface 1470i the web.

Having described my invention, what l claim as new and desire to secure by Letters Patent is:

l. A slider for separable fastener stringers comprising a slider body defined by two anged walls spaced at one end of the slider body in a web integral with one of said walls, the web having a surface on which the other wall seats, means to permit relative movement between said Walls at all times, a swivel element rotatably mounted in Vsaid web and having an end portion engaging said movable wall to normally support the movable wall on the seat surface of said web and in spaced relation to the iirst named Wall, said element having a curved spring portion which in conjunction with said movable wall forms a pivot for a pull, a pull having at one end a pivot portion operating in said bearing, the pull adjacent said pivot portion having an elongated aperture in which the end portion of said element operates, said pull being movable laterally on the slider body in operating said element to disengage the end portion thereof with said movable wall in freeing saidmovable wall for movement relatively to the first named wall of the slider body.

2; A slider for separable fastener stringers comprising a slider body defined by two flanged Walls spaced at one end of the slider body in a web integral with one of said walls, the web having a surface on Which the other wall loosely seats, a swivel element rotatably mounted in said web and having an end portion engaging said movable wall to normally support the movable wall on the seat surface of said web and in spaced relation to the first named wall, said element having a curved bearing portion which in conjunction with said movable wall forms a pivot for a pull, a pull having at one end a pivotv portion operating in said bearing, the pull adjacent said pivot portion having an elongated aperture in which the end portion of said element operates, said pull being movable laterally on the slider body in operating said element to disengage the end portion thereof with said movable wall in freeing said movable wall for movement relatively to the first named wall of the slider body, and said end portion of the element having spring properties to yieldably support the movable wall in operative position.

3. A slider for separable fastener stringers comprising a slider body dened by two flanged walls spaced at one end of the slider body in a Web integral with one of said walls, the web having a surface on which the other Wall seats, a swivel element rotatably mounted in said Web and having an end portion engaging said movable wall to normally support the movable wall on the seat surface of said web and in spaced relation to the rst named Wall, said element having a curved bearing portion which in conjunction with said movable wall forms a pivot for a pull, a pull having at one end a pivot portion operating in said bearing, the pull adjacent said pivot portion having an elongated aperture in which the end portion of said element operates, said pull being movable laterally on the slider body in operating said element to disengage the end portion thereof with said movable wall in freeing said movable wall for movement relatively to the first named Wall of the slider body, said end portion of the element having spring properties to yieldably support the movable wall in operative position, and said movable wall having a key engaging a recessed portion of said web in alining the movable wall with respect to the first named Wa-ll.

4. A slider for separable fastener stringers comprising a slider body defined by two flanged walls spaced at one end of the slider body in a web integral with one of said j walls, the web having a surface on which the other wall seats, a swivel element rotatably mounted in said web and having an end portion engaging said movable wall to no1- mally support the movable wall on the seat surface of said web and in spaced relation to the rst named Wall, said element having a curved bearing portion which in conjunction with said movable wall forms a pivot for a pull, a pull having at one end a pivot portion operating in said bearing, the pull adjacent said pivot portion having an elongated aperture in which the end portion of said element operates, said pull being movable laterally on the slider body in operating said element to disengage the end portion thereof with said movable Wall in freeing said movable wall for movement relatively to the rst named wall of the slider body, said end portion of the element having spring properties to yieldably support the movable wall in operative position, said movable wall having a key engaging a recessed portion of said web in alining the movable wall with respect to the iirst named Wall, and said movable wall having a longitudinal and transversely curved recess in its outer surface in which the yieldable end portion of said element operates in normal support of the movable wall with respect to saidiirst named wall.

5. A slider for separable fastener stringers comprising a slider Vbody dened by two ilanged walls spaced at one end of the slider body in a web integral with one of said walls, the web having a surface on which the other wall seats, a swivel element rotatably mounted in said web and having an end portion engaging said movable wall to normally support the movable Wall on the seat surface of said web and in spaced relation to the first named wall, said element having a curved bearing portion which in conjunction with said movable wall forms a pivot for a pull, a pull having at one end a pivot portion operating in said bearing, the pull adjacent said pivot portion having an elongated aperture in which the end portion of said element operates, said pull being movable laterally on the slider body in operating said element to disengage the end portion thereof with said movable wall in freeing said movable wall for movement relatively to the first named wall of the slider body, said end portion yof the element Ihaving spring properties to yieldably support the movable wall in operative position, said movable wall having a key engaging a recessed portion of said web in alining the movable wall with respect to the rst named wall, said movable wall having a longitudinal and transversely curved recess in its outer surface in which the yieldable end portion of said element operates in 4normal support of the movable wall with res ect to said iirst named wall, said movable wall having an elongated aperture in which said element operates, the movable wall having an elongated aperture at one side of the recess and iirst named aperture, and the pull having a lock element operating i-n the last named aperture and adapted to extend into the channel of the slider body in retaining said body in operative position onrstringers of Aa separable fastener.

6. A non-jamming removable slider of the character described comprising a channel slider body defined by spaced non-resilient walls loosely movable within limits at all times relatively to each other, one wall including an integral web spacing said walls, means coupling said Walls for yieldable and relative movement one With respect to the other, said means comprising a single resilient element rotatably mounted in said web and first named wall and loosely and freely movable in the other of said walls, means for alining the walls one with respect to the other throughout different positions of the walls one with respect to the other, and means movably coupled with said element for moving the same from an operative position yieldably supporting the second named wall to a position freeing the second named wall for predetermined movement with respect to said first named wall.

7. A slider of the class described comprising two relatively movable flanged walls including a web portion dening a channeled slider body, an element rotatably mounted in the web portion of said body and having a curved bearing portion outwardly of one wall of the slider body, the curved bearing portion terminating in a curved spring end portion, said curved spring end portion operatively engaging said wall of the slider body in keying said element against rotation in the slider body, and said wall and the web having interengaging keying means for keying said iirst named wall in maintaining alinement of the iirst named wall with respect to the other wall of the slider body and for preventing rotation of the lirst named wall on the axis of rotation of said element in the slider body while permitting limited free movement of said walls toward and away from each other.

8. A slider of the class described comprising two relatively movable iianged Walls including a web portion defining a channeled slider body, an element rotatably mount ed in the web portion of said body and having a curved bearing portion outwardly of one wall of the slider body, the curved bearing portion terminating in a curved spring end portion, said curved spring end portion operatively engaging said Wall of the slider body in keying said element against rotation in the slider body, said wall and the web having interengaging keying means for keying said rst named wall in maintaining alinement of the iirst named wall with rpect to the other wall of the slider body and for preventing rotation of the iirst named wall on the aXis of rotation of said element in the slider body while permitting limited free movement of said walls toward and away from each other, and means pivotally mounted in the bearing portion of said element and operatively engaging said element for disengaging the element from said first named wall in rotating the same in said slider body to free the iirst named wall for movement relatively to the last named wall of the slider body.

9. A slider of the class described comprising two relatively movable tlanged walls including a web portion deiining a channeled slider body, an element rotatably mounted in the web portion of said body and having a curved bearing portion outwardly of one wall of the slider body, the curved bearing portion terminating in a curved spring end portion, said curved spring end portion operatively engaging said wall of the slider body in keying said element against rotation in the slider body, said Wall and the web having interengaging keying means for keying said iirst named wall in maintaining alinement of the iirst named wall with respect to the other wall of the slider body and for preventing rotation of the tirst named wall on the axis of rotation of said element in the slider body, means pivotally mounted in the bearing portion of said element and operatively engaging said element for disengaging the element from said first named wall in rotating the same in said slider body to free the iirst named wall for movement relatively to the last named Wall of the slider body, and said irst named wall having an elongated aperture encircling said element to provide free movement of said wall on said element.

10. A slider of the class described comprising two relatively movable anged walls including a web portion defining a channeled slider body, an element rotatably mounted in the web portion of said b'ody and having a curved bearing portion outwardly of one wall rof the slider body, the curved bearing portion terminating in a curved spring end portion, said curved spring end portion operatively engaging said wall of the slider body in keying said element against rotation in the slider body, said wall and the web having interengaging keying means for keying said rst named wall in maintaining alinement yof the rst named wall with respect to the other wall of the slider body and for preventing rotation of the rst named wall on the axis of rotation of said element in the slider body, means pivotally mounted in the bearing portion of said element and operatively engaging said element for disengaging the element from said first named wall in rotating the same in said slider body to free the lirst named wall for movement relatively to the last named wall of the slider body, said rst named wall having an elongated aperture encircling said element to provide free movement of said wall on said element, and operative engagement of the curved spring end with said wall of the slider body comprising a transversely curved recess in said wall in which said curved spring end of the element seats.

11. A slider of the class discribed comprising two relatively movable lianged walls inclu-ding a web portion deiining a channeled slider b'ody, an element rotatably mounted in the web portion of said body and having a curved bearing portion outwardly ot one wall of the slider body, the curved bearing portion terminating in a curved spring end portion, said curved spring end portion operatively engaging said wall lof the slider body in keying said element against rotation in the slider body, said Wall and the web having interengaging keying means for keying said rst named wall in maintaining alinement of the first named Wall with respect to the other wall of the slider body and for preventing rotation of the irst named wall on the axis of rotation 'of said element in the slider body, means pivotally mounted in the bearing portion of said element and operatively engaging said element for disengaging the element from said first named wall in rotating the same in said slider body to free the rst named Wall for movement relatively to the last named wall 'of the slider body, sai-d t'irst named wall having an elongated aperture encircling said element to provide free movement of said wall on said element, operative engagement of the curved spring end with said wall of the slider body comprising a transversely curved recess in said wall in which said curved spring end of the element seats, and the means for actuating said element including a lock element adapted to move into and out of the channel 'of the slider body in controlling operation of said slider body on a pair of fastener stringers.

References Cited in the ile of this patent UNITED STATES PATENTS 2,082,988 Taskila June 8, 1937 2,111,004 Pruzan Mar. 15, 1938 2,607,976 Zahel Aug. 26, 1952 FOREIGN PATENTS 885,456 France Sept. 16, 1943 

